Triodia. | | GRAMINEAE. 183 
Referred to Atropis by Mr. Kirk, but clearly a Triodia, and closely allied to the 
following species, from which it differs in the longer and narrower spikelets, narrow 
outer glumes, and silky flowering glumes, which are distinctly though minutely 
3-toothed at the apex. 
D . “Bbw cl, - par 74 
3.-T. Thomsoni Petrie-in Trans. N.Z. Inst. xliv (1912) 188.—Culms 
slender, tufted, branched at the base, quite glabrous, 4-12in. high. 
Leaves much shorter than the culms, involute, filiform, quite smooth and 
glabrous ; sheaths pale, grooved ; ligules reduced to a band of silky hairs. 
Panicle small, erect, contracted, 4-14 in. long, of 6-16 spikelets; branches 
few, short, pubescent. Spikelets greenish-white, small, narrow, 3-7-flowered. 
Two outer glumes usually exceeding the flowering-glumes and awns, 
subequal, oblong-lanceolate, acute, 3-5-nerved. Flowering glumes short 
and broad, ovate, 7-9-nerved, very shortly bifid at the tip, central awn 
from between the lobes, very short, }-} the length of the glume, not 
twisted at the base, a tuft of silky hairs at the base of the glume, and 
two small marginal tufts (sometimes confluent) on each side higher up, 
back of glume glabrous. Palea oblong, shorter than the glume.—-Dan- 
thonia_Thomsoni..Buch. N.Z. Grasses (1879) t. 36 (2). Danthonia nuda 
Cheesem. Man. N.Z. Fl. (1906) 892 (not of Hook. f.). 
SoutH Istanp: Nelson—Mount Arthur Plateau, 7. F. C. Marlborough—-En- 
deavour Inlet, J. H. Macmahon/ Canterbury—Broken River basin, Petrie/ 7. Ff. CW. 
Poulter River, Cockayne! Lake Tekapo, T. F.C. Otago—Common in dry places in 
the eastern and central portions of the district, Buchanan! Petrie! 
In the first edition of this book I confounded this species with Danthonia nuda, 
a plant with which I was not then acquainted and which has proved to be altogether 
distinct. Porto. 7%. « '23a.". 
D. Petras ~ (he-A.) 
4. T. australis Petrie in Trans. N.Z. Inst. xxii (1890) 442,—Culms ka 
.,, densely tufted, much branched at the base, erect or spreading, quite 
glabrous, leafy below, 2-4in. high. Leaves usually shorter than the 
culms, narrow, involute, filiform, deeply striate; sheaths broad, grooved, 
+ pale; ligules reduced to a narrow band of short white hairs with a longer 
tuft on each side. Panicle small, strict, erect, contracted, 4-2in. long, 
, of 6-15 spikelets; branches 4-6, short, pubescent. Spikelets about 4 in, 
~~“long, 2-4-flowered. Two outer glumes rather shorter than the flowering 
“~\ glumes, subequal, broadly ovate, obtuse, 7-nerved; margins broad, pale. 
Flowering glumes very broadly ovate or rounded, glabrous, firm, 9-nerved, 
minutely and irregularly 3-toothed or erose at the tip. Palea broad, 
9-keeled, the keels ciliolate-—Cheesem. Man. N.Z. Fl. (1906) 896. z 
See Timers wor!Pee > 2fS 
Var. muecronulata Hack. MSS.—Sheaths pilose with long hairs. Spikelets 
3-5-flowered, the outer glumes distinctly shorter than the flowering glumes, which 
are more evidently 3-toothed, the middle tooth produced into a short mucro. 
1 RAS, 6 
Soutn Istranp: Otago--Sides of mountain-streams., Clark’s Diggings, Mount 
Cardrona, Old Man Range, Maungatua, Blue Mountains, Petrie! Var. mucronulaia : 
Swamps in the Tasman Valley, Canterbury, 7. F. C. 2000-5000 ft. 
5. T, macquariensis Cheesem. in Vascl. Fl. Macquarie Is. (1919) 34 
(Austral. Antarct. Exped. vol. 7, part 3).—Apparently perennial, tufted, 
often forming dense patches, smooth and glabrous. Culms numerous, 
erect or geniculate at the base, 25-5in. high, leafy to the base of the 
panicle. Leaves equalling the culms or longer than them, rather narrow, 
d5-2'5 in. broad, deeply striate, quite glabrous, flat or involute, margins 
thickened, tips obtuse, callous ; ligules broad-ovate, thin and membranous ; 
vee Choeatin. Trans: $2: 1920+ Ih 
: p 5 f ita, 
fuccme tha Mat gquarrensic Cok.) Ryan. ,~ la 
wa taane | I4Bm: 265 
